Realizing now that he must have come out on the opposite side of the wood from the cars, and might yet have to run a long way to reach them, he decided to find out if the cottage had a telephone. Two minutes later he was hammering loudly on its door, and shouting, 'Wake up there! Wake up!'

In response to his shouts a tousled head was thrust out of an upper window. Without waiting to be questioned or abused he cried, 'I'm a policeman. This is urgent. It's a matter of murder. Have you a telephone?'

'No, I haven't,' angrily replied the man at the window; then, as the reason for his having been aroused from his sleep sunk in, he added, 'Sorry I can't help. But there's one at the vicarage. Turn left and straight up the road. It's just past the church; you can't miss it.'

With a murmur of thanks Barney, still panting, dashed down the garden path to the lane on which the cottage faced, and up the road. After another gruelling run, now gasping for breath and sweating profusely, he reached the vicarage. The same tactics there led, after a few moments, to the front door being opened by a tall, middle-aged man in a dressing-gown, who said he was the vicar.

Using 'murder' again as the best means of getting swift action, Barney was led to the telephone and induced the desk-sergeant at the Cambridge police headquarters to put him through to the night-duty Inspector. To have mentioned Black Magic might have aroused scepticism; so Barney gave the code name by which his office was known to the police, and said that he was on the trail of a wanted enemy agent who was a known killer. Even so he had the greatest difficulty in persuading the Inspector to send more than one police car and also come out himself with a strong force of constables.

The vicar, his eyes on stalks as he listened, supplied the name of his village, which lay just over the crest of the hill; but this produced a new snag, as it was well across the county border, in the north-western corner of Essex. All Barney's persuasive powers were needed to induce the Inspector to cut red tape and enter another county but, by promising to take the responsibility if there was any trouble, he succeeded.

At Barney's request the vicar produced a map of the district. From it he quickly memorized the way to get back on to the other road from which the track led to the ruined Abbey; then he gratefully accepted the vicar's offer of a whisky and soda.